460 lines
11 KiB
C
460 lines
11 KiB
C
/*
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* Driver for DVBSky USB2.0 receiver
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*
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* Copyright (C) 2013 Max nibble <nibble.max@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "dvb_usb.h"
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#include "m88ds3103.h"
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#include "m88ts2022.h"
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#define DVBSKY_MSG_DELAY 0/*2000*/
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#define DVBSKY_BUF_LEN 64
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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struct dvbsky_state {
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struct mutex stream_mutex;
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u8 ibuf[DVBSKY_BUF_LEN];
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u8 obuf[DVBSKY_BUF_LEN];
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u8 last_lock;
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struct i2c_client *i2c_client_tuner;
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/* fe hook functions*/
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int (*fe_set_voltage)(struct dvb_frontend *fe,
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fe_sec_voltage_t voltage);
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int (*fe_read_status)(struct dvb_frontend *fe,
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fe_status_t *status);
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};
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static int dvbsky_usb_generic_rw(struct dvb_usb_device *d,
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u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
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{
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int ret;
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struct dvbsky_state *state = d_to_priv(d);
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mutex_lock(&d->usb_mutex);
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if (wlen != 0)
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memcpy(state->obuf, wbuf, wlen);
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ret = dvb_usbv2_generic_rw_locked(d, state->obuf, wlen,
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state->ibuf, rlen);
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if (!ret && (rlen != 0))
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memcpy(rbuf, state->ibuf, rlen);
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mutex_unlock(&d->usb_mutex);
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return ret;
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}
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static int dvbsky_stream_ctrl(struct dvb_usb_device *d, u8 onoff)
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{
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struct dvbsky_state *state = d_to_priv(d);
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int ret;
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u8 obuf_pre[3] = { 0x37, 0, 0 };
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u8 obuf_post[3] = { 0x36, 3, 0 };
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mutex_lock(&state->stream_mutex);
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ret = dvbsky_usb_generic_rw(d, obuf_pre, 3, NULL, 0);
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if (!ret && onoff) {
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msleep(20);
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ret = dvbsky_usb_generic_rw(d, obuf_post, 3, NULL, 0);
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}
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mutex_unlock(&state->stream_mutex);
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return ret;
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}
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static int dvbsky_streaming_ctrl(struct dvb_frontend *fe, int onoff)
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{
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struct dvb_usb_device *d = fe_to_d(fe);
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return dvbsky_stream_ctrl(d, (onoff == 0) ? 0 : 1);
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}
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/* GPIO */
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static int dvbsky_gpio_ctrl(struct dvb_usb_device *d, u8 gport, u8 value)
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{
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int ret;
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u8 obuf[3], ibuf[2];
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obuf[0] = 0x0e;
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obuf[1] = gport;
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obuf[2] = value;
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ret = dvbsky_usb_generic_rw(d, obuf, 3, ibuf, 1);
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if (ret)
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dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
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KBUILD_MODNAME, __func__, ret);
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return ret;
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}
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/* I2C */
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static int dvbsky_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
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int num)
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{
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int ret = 0;
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u8 ibuf[64], obuf[64];
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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if (num > 2) {
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dev_err(&d->udev->dev,
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"dvbsky_usb: too many i2c messages[%d] than 2.", num);
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ret = -EOPNOTSUPP;
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goto i2c_error;
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}
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if (num == 1) {
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if (msg[0].len > 60) {
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dev_err(&d->udev->dev,
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"dvbsky_usb: too many i2c bytes[%d] than 60.",
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msg[0].len);
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ret = -EOPNOTSUPP;
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goto i2c_error;
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}
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if (msg[0].flags & I2C_M_RD) {
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/* single read */
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obuf[0] = 0x09;
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obuf[1] = 0;
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obuf[2] = msg[0].len;
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obuf[3] = msg[0].addr;
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ret = dvbsky_usb_generic_rw(d, obuf, 4,
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ibuf, msg[0].len + 1);
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if (ret)
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dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
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KBUILD_MODNAME, __func__, ret);
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if (!ret)
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memcpy(msg[0].buf, &ibuf[1], msg[0].len);
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} else {
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/* write */
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obuf[0] = 0x08;
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obuf[1] = msg[0].addr;
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obuf[2] = msg[0].len;
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memcpy(&obuf[3], msg[0].buf, msg[0].len);
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ret = dvbsky_usb_generic_rw(d, obuf,
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msg[0].len + 3, ibuf, 1);
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if (ret)
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dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
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KBUILD_MODNAME, __func__, ret);
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}
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} else {
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if ((msg[0].len > 60) || (msg[1].len > 60)) {
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dev_err(&d->udev->dev,
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"dvbsky_usb: too many i2c bytes[w-%d][r-%d] than 60.",
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msg[0].len, msg[1].len);
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ret = -EOPNOTSUPP;
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goto i2c_error;
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}
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/* write then read */
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obuf[0] = 0x09;
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obuf[1] = msg[0].len;
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obuf[2] = msg[1].len;
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obuf[3] = msg[0].addr;
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memcpy(&obuf[4], msg[0].buf, msg[0].len);
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ret = dvbsky_usb_generic_rw(d, obuf,
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msg[0].len + 4, ibuf, msg[1].len + 1);
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if (ret)
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dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
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KBUILD_MODNAME, __func__, ret);
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if (!ret)
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memcpy(msg[1].buf, &ibuf[1], msg[1].len);
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}
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i2c_error:
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mutex_unlock(&d->i2c_mutex);
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return (ret) ? ret : num;
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}
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static u32 dvbsky_i2c_func(struct i2c_adapter *adapter)
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{
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return I2C_FUNC_I2C;
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}
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static struct i2c_algorithm dvbsky_i2c_algo = {
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.master_xfer = dvbsky_i2c_xfer,
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.functionality = dvbsky_i2c_func,
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};
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#if IS_ENABLED(CONFIG_RC_CORE)
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static int dvbsky_rc_query(struct dvb_usb_device *d)
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{
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u32 code = 0xffff, scancode;
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u8 rc5_command, rc5_system;
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u8 obuf[2], ibuf[2], toggle;
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int ret;
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obuf[0] = 0x10;
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ret = dvbsky_usb_generic_rw(d, obuf, 1, ibuf, 2);
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if (ret)
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dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
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KBUILD_MODNAME, __func__, ret);
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if (ret == 0)
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code = (ibuf[0] << 8) | ibuf[1];
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if (code != 0xffff) {
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dev_dbg(&d->udev->dev, "rc code: %x\n", code);
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rc5_command = code & 0x3F;
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rc5_system = (code & 0x7C0) >> 6;
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toggle = (code & 0x800) ? 1 : 0;
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scancode = rc5_system << 8 | rc5_command;
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rc_keydown(d->rc_dev, RC_TYPE_RC5, scancode, toggle);
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}
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return 0;
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}
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static int dvbsky_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
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{
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rc->allowed_protos = RC_BIT_RC5;
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rc->query = dvbsky_rc_query;
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rc->interval = 300;
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return 0;
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}
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#else
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#define dvbsky_get_rc_config NULL
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#endif
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static int dvbsky_usb_set_voltage(struct dvb_frontend *fe,
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fe_sec_voltage_t voltage)
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{
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struct dvb_usb_device *d = fe_to_d(fe);
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struct dvbsky_state *state = d_to_priv(d);
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u8 value;
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if (voltage == SEC_VOLTAGE_OFF)
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value = 0;
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else
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value = 1;
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dvbsky_gpio_ctrl(d, 0x80, value);
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return state->fe_set_voltage(fe, voltage);
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}
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static int dvbsky_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
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{
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struct dvb_usb_device *d = adap_to_d(adap);
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u8 obuf[] = { 0x1e, 0x00 };
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u8 ibuf[6] = { 0 };
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struct i2c_msg msg[] = {
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{
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.addr = 0x51,
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.flags = 0,
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.buf = obuf,
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.len = 2,
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}, {
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.addr = 0x51,
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.flags = I2C_M_RD,
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.buf = ibuf,
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.len = 6,
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}
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};
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if (i2c_transfer(&d->i2c_adap, msg, 2) == 2)
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memcpy(mac, ibuf, 6);
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dev_info(&d->udev->dev, "dvbsky_usb MAC address=%pM\n", mac);
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return 0;
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}
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static int dvbsky_usb_read_status(struct dvb_frontend *fe, fe_status_t *status)
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{
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struct dvb_usb_device *d = fe_to_d(fe);
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struct dvbsky_state *state = d_to_priv(d);
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int ret;
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ret = state->fe_read_status(fe, status);
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/* it need resync slave fifo when signal change from unlock to lock.*/
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if ((*status & FE_HAS_LOCK) && (!state->last_lock))
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dvbsky_stream_ctrl(d, 1);
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state->last_lock = (*status & FE_HAS_LOCK) ? 1 : 0;
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return ret;
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}
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static const struct m88ds3103_config dvbsky_s960_m88ds3103_config = {
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.i2c_addr = 0x68,
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.clock = 27000000,
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.i2c_wr_max = 33,
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.clock_out = 0,
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.ts_mode = M88DS3103_TS_CI,
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.ts_clk = 16000,
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.ts_clk_pol = 0,
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.agc = 0x99,
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.lnb_hv_pol = 1,
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.lnb_en_pol = 1,
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};
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static int dvbsky_s960_attach(struct dvb_usb_adapter *adap)
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{
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struct dvbsky_state *state = adap_to_priv(adap);
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struct dvb_usb_device *d = adap_to_d(adap);
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int ret = 0;
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/* demod I2C adapter */
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struct i2c_adapter *i2c_adapter;
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struct i2c_client *client;
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struct i2c_board_info info;
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struct m88ts2022_config m88ts2022_config = {
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.clock = 27000000,
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};
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memset(&info, 0, sizeof(struct i2c_board_info));
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/* attach demod */
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adap->fe[0] = dvb_attach(m88ds3103_attach,
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&dvbsky_s960_m88ds3103_config,
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&d->i2c_adap,
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&i2c_adapter);
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if (!adap->fe[0]) {
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dev_err(&d->udev->dev, "dvbsky_s960_attach fail.\n");
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ret = -ENODEV;
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goto fail_attach;
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}
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/* attach tuner */
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m88ts2022_config.fe = adap->fe[0];
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strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
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info.addr = 0x60;
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info.platform_data = &m88ts2022_config;
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request_module("m88ts2022");
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client = i2c_new_device(i2c_adapter, &info);
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if (client == NULL || client->dev.driver == NULL) {
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dvb_frontend_detach(adap->fe[0]);
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ret = -ENODEV;
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goto fail_attach;
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}
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if (!try_module_get(client->dev.driver->owner)) {
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i2c_unregister_device(client);
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dvb_frontend_detach(adap->fe[0]);
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ret = -ENODEV;
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goto fail_attach;
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}
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/* delegate signal strength measurement to tuner */
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adap->fe[0]->ops.read_signal_strength =
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adap->fe[0]->ops.tuner_ops.get_rf_strength;
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/* hook fe: need to resync the slave fifo when signal locks. */
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state->fe_read_status = adap->fe[0]->ops.read_status;
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adap->fe[0]->ops.read_status = dvbsky_usb_read_status;
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/* hook fe: LNB off/on is control by Cypress usb chip. */
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state->fe_set_voltage = adap->fe[0]->ops.set_voltage;
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adap->fe[0]->ops.set_voltage = dvbsky_usb_set_voltage;
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state->i2c_client_tuner = client;
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fail_attach:
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return ret;
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}
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static int dvbsky_identify_state(struct dvb_usb_device *d, const char **name)
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{
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dvbsky_gpio_ctrl(d, 0x04, 1);
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msleep(20);
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dvbsky_gpio_ctrl(d, 0x83, 0);
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dvbsky_gpio_ctrl(d, 0xc0, 1);
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msleep(100);
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dvbsky_gpio_ctrl(d, 0x83, 1);
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dvbsky_gpio_ctrl(d, 0xc0, 0);
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msleep(50);
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return WARM;
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}
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static int dvbsky_init(struct dvb_usb_device *d)
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{
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struct dvbsky_state *state = d_to_priv(d);
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/* use default interface */
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/*
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ret = usb_set_interface(d->udev, 0, 0);
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if (ret)
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return ret;
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*/
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mutex_init(&state->stream_mutex);
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state->last_lock = 0;
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return 0;
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}
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static void dvbsky_exit(struct dvb_usb_device *d)
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{
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struct dvbsky_state *state = d_to_priv(d);
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struct i2c_client *client;
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client = state->i2c_client_tuner;
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/* remove I2C tuner */
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if (client) {
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module_put(client->dev.driver->owner);
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i2c_unregister_device(client);
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}
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}
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/* DVB USB Driver stuff */
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static struct dvb_usb_device_properties dvbsky_s960_props = {
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.driver_name = KBUILD_MODNAME,
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.owner = THIS_MODULE,
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.adapter_nr = adapter_nr,
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.size_of_priv = sizeof(struct dvbsky_state),
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.generic_bulk_ctrl_endpoint = 0x01,
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.generic_bulk_ctrl_endpoint_response = 0x81,
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.generic_bulk_ctrl_delay = DVBSKY_MSG_DELAY,
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.i2c_algo = &dvbsky_i2c_algo,
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.frontend_attach = dvbsky_s960_attach,
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.init = dvbsky_init,
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.get_rc_config = dvbsky_get_rc_config,
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.streaming_ctrl = dvbsky_streaming_ctrl,
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.identify_state = dvbsky_identify_state,
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.exit = dvbsky_exit,
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.read_mac_address = dvbsky_read_mac_addr,
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.num_adapters = 1,
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.adapter = {
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{
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.stream = DVB_USB_STREAM_BULK(0x82, 8, 4096),
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}
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}
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};
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static const struct usb_device_id dvbsky_id_table[] = {
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{ DVB_USB_DEVICE(0x0572, 0x6831,
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&dvbsky_s960_props, "DVBSky S960/S860", RC_MAP_DVBSKY) },
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{ }
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};
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MODULE_DEVICE_TABLE(usb, dvbsky_id_table);
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static struct usb_driver dvbsky_usb_driver = {
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.name = KBUILD_MODNAME,
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.id_table = dvbsky_id_table,
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.probe = dvb_usbv2_probe,
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.disconnect = dvb_usbv2_disconnect,
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.suspend = dvb_usbv2_suspend,
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.resume = dvb_usbv2_resume,
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.reset_resume = dvb_usbv2_reset_resume,
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.no_dynamic_id = 1,
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.soft_unbind = 1,
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};
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module_usb_driver(dvbsky_usb_driver);
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MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
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MODULE_DESCRIPTION("Driver for DVBSky USB");
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MODULE_LICENSE("GPL");
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