[media] dvbsky: new driver to support DVBSky S860/S960 devices (af64fb3f) · Commits · 戴 / test

drivers/media/usb/dvb-usb-v2/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -141,3 +141,10 @@ config DVB_USB_RTL28XXU
		help
		Say Y here to support the Realtek RTL28xxU DVB USB receiver.

		config DVB_USB_DVBSKY
		tristate "DVBSky USB support"
		depends on DVB_USB_V2
		select DVB_M88DS3103 if MEDIA_SUBDRV_AUTOSELECT
		select MEDIA_TUNER_M88TS2022 if MEDIA_SUBDRV_AUTOSELECT
		help
		Say Y here to support the USB receivers from DVBSky.

drivers/media/usb/dvb-usb-v2/Makefile

+3 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,9 @@ obj-$(CONFIG_DVB_USB_MXL111SF) += mxl111sf-tuner.o
		dvb-usb-rtl28xxu-objs := rtl28xxu.o
		obj-$(CONFIG_DVB_USB_RTL28XXU) += dvb-usb-rtl28xxu.o

		dvb-usb-dvbsky-objs := dvbsky.o
		obj-$(CONFIG_DVB_USB_DVBSKY) += dvb-usb-dvbsky.o

		ccflags-y += -I$(srctree)/drivers/media/dvb-core
		ccflags-y += -I$(srctree)/drivers/media/dvb-frontends
		ccflags-y += -I$(srctree)/drivers/media/tuners

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

0 → 100644

+460 −0

Original line number	Diff line number	Diff line
		/*
		* Driver for DVBSky USB2.0 receiver
		*
		* Copyright (C) 2013 Max nibble <nibble.max@gmail.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		*/

		#include "dvb_usb.h"
		#include "m88ds3103.h"
		#include "m88ts2022.h"

		#define DVBSKY_MSG_DELAY 0/2000/
		#define DVBSKY_BUF_LEN 64

		DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

		struct dvbsky_state {
		struct mutex stream_mutex;
		u8 ibuf[DVBSKY_BUF_LEN];
		u8 obuf[DVBSKY_BUF_LEN];
		u8 last_lock;
		struct i2c_client *i2c_client_tuner;

		/* fe hook functions*/
		int (fe_set_voltage)(struct dvb_frontend fe,
		fe_sec_voltage_t voltage);
		int (fe_read_status)(struct dvb_frontend fe,
		fe_status_t *status);
		};

		static int dvbsky_usb_generic_rw(struct dvb_usb_device *d,
		u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
		{
		int ret;
		struct dvbsky_state *state = d_to_priv(d);

		mutex_lock(&d->usb_mutex);
		if (wlen != 0)
		memcpy(state->obuf, wbuf, wlen);

		ret = dvb_usbv2_generic_rw_locked(d, state->obuf, wlen,
		state->ibuf, rlen);

		if (!ret && (rlen != 0))
		memcpy(rbuf, state->ibuf, rlen);

		mutex_unlock(&d->usb_mutex);
		return ret;
		}

		static int dvbsky_stream_ctrl(struct dvb_usb_device *d, u8 onoff)
		{
		struct dvbsky_state *state = d_to_priv(d);
		int ret;
		u8 obuf_pre[3] = { 0x37, 0, 0 };
		u8 obuf_post[3] = { 0x36, 3, 0 };

		mutex_lock(&state->stream_mutex);
		ret = dvbsky_usb_generic_rw(d, obuf_pre, 3, NULL, 0);
		if (!ret && onoff) {
		msleep(20);
		ret = dvbsky_usb_generic_rw(d, obuf_post, 3, NULL, 0);
		}
		mutex_unlock(&state->stream_mutex);
		return ret;
		}

		static int dvbsky_streaming_ctrl(struct dvb_frontend *fe, int onoff)
		{
		struct dvb_usb_device *d = fe_to_d(fe);

		return dvbsky_stream_ctrl(d, (onoff == 0) ? 0 : 1);
		}

		/* GPIO */
		static int dvbsky_gpio_ctrl(struct dvb_usb_device *d, u8 gport, u8 value)
		{
		int ret;
		u8 obuf[3], ibuf[2];

		obuf[0] = 0x0e;
		obuf[1] = gport;
		obuf[2] = value;
		ret = dvbsky_usb_generic_rw(d, obuf, 3, ibuf, 1);
		if (ret)
		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
		KBUILD_MODNAME, __func__, ret);
		return ret;
		}

		/* I2C */
		static int dvbsky_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
		int num)
		{
		struct dvb_usb_device *d = i2c_get_adapdata(adap);
		int ret = 0;
		u8 ibuf[64], obuf[64];

		if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

		if (num > 2) {
		dev_err(&d->udev->dev,
		"dvbsky_usb: too many i2c messages[%d] than 2.", num);
		ret = -EOPNOTSUPP;
		goto i2c_error;
		}

		if (num == 1) {
		if (msg[0].len > 60) {
		dev_err(&d->udev->dev,
		"dvbsky_usb: too many i2c bytes[%d] than 60.",
		msg[0].len);
		ret = -EOPNOTSUPP;
		goto i2c_error;
		}
		if (msg[0].flags & I2C_M_RD) {
		/* single read */
		obuf[0] = 0x09;
		obuf[1] = 0;
		obuf[2] = msg[0].len;
		obuf[3] = msg[0].addr;
		ret = dvbsky_usb_generic_rw(d, obuf, 4,
		ibuf, msg[0].len + 1);
		if (ret)
		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
		KBUILD_MODNAME, __func__, ret);
		if (!ret)
		memcpy(msg[0].buf, &ibuf[1], msg[0].len);
		} else {
		/* write */
		obuf[0] = 0x08;
		obuf[1] = msg[0].addr;
		obuf[2] = msg[0].len;
		memcpy(&obuf[3], msg[0].buf, msg[0].len);
		ret = dvbsky_usb_generic_rw(d, obuf,
		msg[0].len + 3, ibuf, 1);
		if (ret)
		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
		KBUILD_MODNAME, __func__, ret);
		}
		} else {
		if ((msg[0].len > 60) \|\| (msg[1].len > 60)) {
		dev_err(&d->udev->dev,
		"dvbsky_usb: too many i2c bytes[w-%d][r-%d] than 60.",
		msg[0].len, msg[1].len);
		ret = -EOPNOTSUPP;
		goto i2c_error;
		}
		/* write then read */
		obuf[0] = 0x09;
		obuf[1] = msg[0].len;
		obuf[2] = msg[1].len;
		obuf[3] = msg[0].addr;
		memcpy(&obuf[4], msg[0].buf, msg[0].len);
		ret = dvbsky_usb_generic_rw(d, obuf,
		msg[0].len + 4, ibuf, msg[1].len + 1);
		if (ret)
		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
		KBUILD_MODNAME, __func__, ret);

		if (!ret)
		memcpy(msg[1].buf, &ibuf[1], msg[1].len);
		}
		i2c_error:
		mutex_unlock(&d->i2c_mutex);
		return (ret) ? ret : num;
		}

		static u32 dvbsky_i2c_func(struct i2c_adapter *adapter)
		{
		return I2C_FUNC_I2C;
		}

		static struct i2c_algorithm dvbsky_i2c_algo = {
		.master_xfer = dvbsky_i2c_xfer,
		.functionality = dvbsky_i2c_func,
		};

		#if IS_ENABLED(CONFIG_RC_CORE)
		static int dvbsky_rc_query(struct dvb_usb_device *d)
		{
		u32 code = 0xffff, scancode;
		u8 rc5_command, rc5_system;
		u8 obuf[2], ibuf[2], toggle;
		int ret;

		obuf[0] = 0x10;
		ret = dvbsky_usb_generic_rw(d, obuf, 1, ibuf, 2);
		if (ret)
		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
		KBUILD_MODNAME, __func__, ret);
		if (ret == 0)
		code = (ibuf[0] << 8) \| ibuf[1];
		if (code != 0xffff) {
		dev_dbg(&d->udev->dev, "rc code: %x\n", code);
		rc5_command = code & 0x3F;
		rc5_system = (code & 0x7C0) >> 6;
		toggle = (code & 0x800) ? 1 : 0;
		scancode = rc5_system << 8 \| rc5_command;
		rc_keydown(d->rc_dev, RC_TYPE_RC5, scancode, toggle);
		}
		return 0;
		}

		static int dvbsky_get_rc_config(struct dvb_usb_device d, struct dvb_usb_rc rc)
		{
		rc->allowed_protos = RC_BIT_RC5;
		rc->query = dvbsky_rc_query;
		rc->interval = 300;
		return 0;
		}
		#else
		#define dvbsky_get_rc_config NULL
		#endif

		static int dvbsky_usb_set_voltage(struct dvb_frontend *fe,
		fe_sec_voltage_t voltage)
		{
		struct dvb_usb_device *d = fe_to_d(fe);
		struct dvbsky_state *state = d_to_priv(d);
		u8 value;

		if (voltage == SEC_VOLTAGE_OFF)
		value = 0;
		else
		value = 1;
		dvbsky_gpio_ctrl(d, 0x80, value);

		return state->fe_set_voltage(fe, voltage);
		}

		static int dvbsky_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
		{
		struct dvb_usb_device *d = adap_to_d(adap);
		u8 obuf[] = { 0x1e, 0x00 };
		u8 ibuf[6] = { 0 };
		struct i2c_msg msg[] = {
		{
		.addr = 0x51,
		.flags = 0,
		.buf = obuf,
		.len = 2,
		}, {
		.addr = 0x51,
		.flags = I2C_M_RD,
		.buf = ibuf,
		.len = 6,
		}
		};

		if (i2c_transfer(&d->i2c_adap, msg, 2) == 2)
		memcpy(mac, ibuf, 6);

		dev_info(&d->udev->dev, "dvbsky_usb MAC address=%pM\n", mac);

		return 0;
		}

		static int dvbsky_usb_read_status(struct dvb_frontend fe, fe_status_t status)
		{
		struct dvb_usb_device *d = fe_to_d(fe);
		struct dvbsky_state *state = d_to_priv(d);
		int ret;

		ret = state->fe_read_status(fe, status);

		/* it need resync slave fifo when signal change from unlock to lock.*/
		if ((*status & FE_HAS_LOCK) && (!state->last_lock))
		dvbsky_stream_ctrl(d, 1);

		state->last_lock = (*status & FE_HAS_LOCK) ? 1 : 0;
		return ret;
		}

		static const struct m88ds3103_config dvbsky_s960_m88ds3103_config = {
		.i2c_addr = 0x68,
		.clock = 27000000,
		.i2c_wr_max = 33,
		.clock_out = 0,
		.ts_mode = M88DS3103_TS_CI,
		.ts_clk = 16000,
		.ts_clk_pol = 0,
		.agc = 0x99,
		.lnb_hv_pol = 1,
		.lnb_en_pol = 1,
		};

		static int dvbsky_s960_attach(struct dvb_usb_adapter *adap)
		{
		struct dvbsky_state *state = adap_to_priv(adap);
		struct dvb_usb_device *d = adap_to_d(adap);
		int ret = 0;
		/* demod I2C adapter */
		struct i2c_adapter *i2c_adapter;
		struct i2c_client *client;
		struct i2c_board_info info;
		struct m88ts2022_config m88ts2022_config = {
		.clock = 27000000,
		};
		memset(&info, 0, sizeof(struct i2c_board_info));

		/* attach demod */
		adap->fe[0] = dvb_attach(m88ds3103_attach,
		&dvbsky_s960_m88ds3103_config,
		&d->i2c_adap,
		&i2c_adapter);
		if (!adap->fe[0]) {
		dev_err(&d->udev->dev, "dvbsky_s960_attach fail.\n");
		ret = -ENODEV;
		goto fail_attach;
		}

		/* attach tuner */
		m88ts2022_config.fe = adap->fe[0];
		strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
		info.addr = 0x60;
		info.platform_data = &m88ts2022_config;
		request_module("m88ts2022");
		client = i2c_new_device(i2c_adapter, &info);
		if (client == NULL \|\| client->dev.driver == NULL) {
		dvb_frontend_detach(adap->fe[0]);
		ret = -ENODEV;
		goto fail_attach;
		}

		if (!try_module_get(client->dev.driver->owner)) {
		i2c_unregister_device(client);
		dvb_frontend_detach(adap->fe[0]);
		ret = -ENODEV;
		goto fail_attach;
		}

		/* delegate signal strength measurement to tuner */
		adap->fe[0]->ops.read_signal_strength =
		adap->fe[0]->ops.tuner_ops.get_rf_strength;

		/* hook fe: need to resync the slave fifo when signal locks. */
		state->fe_read_status = adap->fe[0]->ops.read_status;
		adap->fe[0]->ops.read_status = dvbsky_usb_read_status;

		/* hook fe: LNB off/on is control by Cypress usb chip. */
		state->fe_set_voltage = adap->fe[0]->ops.set_voltage;
		adap->fe[0]->ops.set_voltage = dvbsky_usb_set_voltage;

		state->i2c_client_tuner = client;

		fail_attach:
		return ret;
		}

		static int dvbsky_identify_state(struct dvb_usb_device d, const char *name)
		{
		dvbsky_gpio_ctrl(d, 0x04, 1);
		msleep(20);
		dvbsky_gpio_ctrl(d, 0x83, 0);
		dvbsky_gpio_ctrl(d, 0xc0, 1);
		msleep(100);
		dvbsky_gpio_ctrl(d, 0x83, 1);
		dvbsky_gpio_ctrl(d, 0xc0, 0);
		msleep(50);

		return WARM;
		}

		static int dvbsky_init(struct dvb_usb_device *d)
		{
		struct dvbsky_state *state = d_to_priv(d);

		/* use default interface */
		/*
		ret = usb_set_interface(d->udev, 0, 0);
		if (ret)
		return ret;
		*/
		mutex_init(&state->stream_mutex);

		state->last_lock = 0;

		return 0;
		}

		static void dvbsky_exit(struct dvb_usb_device *d)
		{
		struct dvbsky_state *state = d_to_priv(d);
		struct i2c_client *client;

		client = state->i2c_client_tuner;
		/* remove I2C tuner */
		if (client) {
		module_put(client->dev.driver->owner);
		i2c_unregister_device(client);
		}
		}

		/* DVB USB Driver stuff */
		static struct dvb_usb_device_properties dvbsky_s960_props = {
		.driver_name = KBUILD_MODNAME,
		.owner = THIS_MODULE,
		.adapter_nr = adapter_nr,
		.size_of_priv = sizeof(struct dvbsky_state),

		.generic_bulk_ctrl_endpoint = 0x01,
		.generic_bulk_ctrl_endpoint_response = 0x81,
		.generic_bulk_ctrl_delay = DVBSKY_MSG_DELAY,

		.i2c_algo = &dvbsky_i2c_algo,
		.frontend_attach = dvbsky_s960_attach,
		.init = dvbsky_init,
		.get_rc_config = dvbsky_get_rc_config,
		.streaming_ctrl = dvbsky_streaming_ctrl,
		.identify_state = dvbsky_identify_state,
		.exit = dvbsky_exit,
		.read_mac_address = dvbsky_read_mac_addr,

		.num_adapters = 1,
		.adapter = {
		{
		.stream = DVB_USB_STREAM_BULK(0x82, 8, 4096),
		}
		}
		};

		static const struct usb_device_id dvbsky_id_table[] = {
		{ DVB_USB_DEVICE(0x0572, 0x6831,
		&dvbsky_s960_props, "DVBSky S960/S860", RC_MAP_DVBSKY) },
		{ }
		};
		MODULE_DEVICE_TABLE(usb, dvbsky_id_table);

		static struct usb_driver dvbsky_usb_driver = {
		.name = KBUILD_MODNAME,
		.id_table = dvbsky_id_table,
		.probe = dvb_usbv2_probe,
		.disconnect = dvb_usbv2_disconnect,
		.suspend = dvb_usbv2_suspend,
		.resume = dvb_usbv2_resume,
		.reset_resume = dvb_usbv2_reset_resume,
		.no_dynamic_id = 1,
		.soft_unbind = 1,
		};

		module_usb_driver(dvbsky_usb_driver);

		MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
		MODULE_DESCRIPTION("Driver for DVBSky USB");
		MODULE_LICENSE("GPL");

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