[media] rtl28xxu: add support for tua9001 tuner based devices (5be65721) · Commits · jan.koester / Linux

drivers/media/usb/dvb-usb-v2/rtl28xxu.c

+92 −3

Original line number	Diff line number	Diff line
		@@ -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)