[media] rtl28xxu: add support for tua9001 tuner based devices

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

1 files changed, 92 insertions, 3 deletions

diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index a62238f5aa2c..31c9f440a4e2 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -32,6 +32,7 @@
 #include "fc0013.h"
 #include "e4000.h"
 #include "fc2580.h"
+#include "tua9001.h"
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
@@ -399,6 +400,12 @@ static struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = {
         .tuner = TUNER_RTL2832_FC0013
 };
 
+static struct rtl2832_config rtl28xxu_rtl2832_tua9001_config = {
+        .i2c_addr = 0x10, /* 0x20 */
+        .xtal = 28800000,
+        .tuner = TUNER_RTL2832_TUA9001,
+};
+
 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
                 int cmd, int arg)
 {
@@ -443,6 +450,54 @@ static int rtl2832u_fc0013_tuner_callback(struct dvb_usb_device *d,
         return 0;
 }
 
+static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
+                int cmd, int arg)
+{
+        int ret;
+        u8 val;
+
+        dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
+
+        /*
+         * CEN     always enabled by hardware wiring
+         * RESETN  GPIO4
+         * RXEN    GPIO1
+         */
+
+        ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
+        if (ret < 0)
+                goto err;
+
+        switch (cmd) {
+        case TUA9001_CMD_RESETN:
+                if (arg)
+                        val |= (1 << 4);
+                else
+                        val &= ~(1 << 4);
+
+                ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val);
+                if (ret < 0)
+                        goto err;
+                break;
+        case TUA9001_CMD_RXEN:
+                if (arg)
+                        val |= (1 << 1);
+                else
+                        val &= ~(1 << 1);
+
+                ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val);
+                if (ret < 0)
+                        goto err;
+                break;
+        }
+
+        return 0;
+
+err:
+        dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+        return ret;
+}
+
 static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 {
         struct rtl28xxu_priv *priv = d->priv;
@@ -453,6 +508,9 @@ static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 
         case TUNER_RTL2832_FC0013:
                 return rtl2832u_fc0013_tuner_callback(d, cmd, arg);
+
+        case TUNER_RTL2832_TUA9001:
+                return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
         default:
                 break;
         }
@@ -608,10 +666,10 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
                 priv->tuner = TUNER_RTL2832_TUA9001;
-                /* TODO implement tuner */
+                rtl2832_config = &rtl28xxu_rtl2832_tua9001_config;
                 dev_info(&d->udev->dev, "%s: TUA9001 tuner found",
                                 KBUILD_MODNAME);
-                goto unsupported;
+                goto found;
         }
 
         /* check MXL5007R ID register; reg=d9 val=14 */
@@ -760,12 +818,17 @@ static const struct fc2580_config rtl2832u_fc2580_config = {
         .clock = 16384000,
 };
 
+static struct tua9001_config rtl2832u_tua9001_config = {
+        .i2c_addr = 0x60,
+};
+
 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
 {
         int ret;
         struct dvb_usb_device *d = adap_to_d(adap);
         struct rtl28xxu_priv *priv = d_to_priv(d);
         struct dvb_frontend *fe;
+        u8 val;
 
         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 
@@ -796,6 +859,33 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
                 fe = dvb_attach(fc2580_attach, adap->fe[0], &d->i2c_adap,
                                 &rtl2832u_fc2580_config);
                 break;
+        case TUNER_RTL2832_TUA9001:
+                /* enable GPIO1 and GPIO4 as output */
+                ret = rtl28xx_rd_reg(d, SYS_GPIO_DIR, &val);
+                if (ret < 0)
+                        goto err;
+
+                val &= ~(1 << 1);
+                val &= ~(1 << 4);
+
+                ret = rtl28xx_wr_reg(d, SYS_GPIO_DIR, val);
+                if (ret < 0)
+                        goto err;
+
+                ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_EN, &val);
+                if (ret < 0)
+                        goto err;
+
+                val |= (1 << 1);
+                val |= (1 << 4);
+
+                ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_EN, val);
+                if (ret < 0)
+                        goto err;
+
+                fe = dvb_attach(tua9001_attach, adap->fe[0], &d->i2c_adap,
+                                &rtl2832u_tua9001_config);
+                break;
         default:
                 fe = NULL;
                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
@@ -978,7 +1068,6 @@ static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
                 if (ret)
                         goto err;
 
-
                 /* streaming EP: clear stall & reset */
                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
                 if (ret)