// SPDX-License-Identifier: GPL-2.0-only
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/* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S
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* receiver.
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*
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* Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
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* Metzler Brothers Systementwicklung GbR
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*
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* Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@posteo.de>
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*
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* Thanks to Twinhan who kindly provided hardware and information.
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*
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* see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
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*/
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#include "vp702x.h"
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#include <linux/mutex.h>
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/* debug */
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int dvb_usb_vp702x_debug;
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module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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struct vp702x_adapter_state {
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int pid_filter_count;
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int pid_filter_can_bypass;
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u8 pid_filter_state;
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};
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static int vp702x_usb_in_op_unlocked(struct dvb_usb_device *d, u8 req,
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u16 value, u16 index, u8 *b, int blen)
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{
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int ret;
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ret = usb_control_msg(d->udev,
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usb_rcvctrlpipe(d->udev, 0),
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req,
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USB_TYPE_VENDOR | USB_DIR_IN,
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value, index, b, blen,
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2000);
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if (ret < 0) {
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warn("usb in operation failed. (%d)", ret);
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ret = -EIO;
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} else
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ret = 0;
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deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
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debug_dump(b,blen,deb_xfer);
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return ret;
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}
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int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value,
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u16 index, u8 *b, int blen)
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{
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int ret;
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mutex_lock(&d->usb_mutex);
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ret = vp702x_usb_in_op_unlocked(d, req, value, index, b, blen);
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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 vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req,
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u16 value, u16 index, u8 *b, int blen)
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{
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int ret;
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deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
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debug_dump(b,blen,deb_xfer);
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if ((ret = usb_control_msg(d->udev,
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usb_sndctrlpipe(d->udev,0),
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req,
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USB_TYPE_VENDOR | USB_DIR_OUT,
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value,index,b,blen,
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2000)) != blen) {
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warn("usb out operation failed. (%d)",ret);
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return -EIO;
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} else
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return 0;
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}
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static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
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u16 index, u8 *b, int blen)
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{
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int ret;
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mutex_lock(&d->usb_mutex);
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ret = vp702x_usb_out_op_unlocked(d, req, value, index, b, blen);
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mutex_unlock(&d->usb_mutex);
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return ret;
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}
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int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec)
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{
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int ret;
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if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
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return ret;
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ret = vp702x_usb_out_op_unlocked(d, REQUEST_OUT, 0, 0, o, olen);
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msleep(msec);
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ret = vp702x_usb_in_op_unlocked(d, REQUEST_IN, 0, 0, i, ilen);
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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 vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o,
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int olen, u8 *i, int ilen, int msec)
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{
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struct vp702x_device_state *st = d->priv;
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int ret = 0;
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u8 *buf;
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int buflen = max(olen + 2, ilen + 1);
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ret = mutex_lock_interruptible(&st->buf_mutex);
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if (ret < 0)
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return ret;
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if (buflen > st->buf_len) {
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buf = kmalloc(buflen, GFP_KERNEL);
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if (!buf) {
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mutex_unlock(&st->buf_mutex);
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return -ENOMEM;
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}
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info("successfully reallocated a bigger buffer");
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kfree(st->buf);
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st->buf = buf;
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st->buf_len = buflen;
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} else {
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buf = st->buf;
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}
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buf[0] = 0x00;
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buf[1] = cmd;
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memcpy(&buf[2], o, olen);
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ret = vp702x_usb_inout_op(d, buf, olen+2, buf, ilen+1, msec);
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if (ret == 0)
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memcpy(i, &buf[1], ilen);
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mutex_unlock(&st->buf_mutex);
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return ret;
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}
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static int vp702x_set_pld_mode(struct dvb_usb_adapter *adap, u8 bypass)
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{
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int ret;
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struct vp702x_device_state *st = adap->dev->priv;
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u8 *buf;
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mutex_lock(&st->buf_mutex);
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buf = st->buf;
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memset(buf, 0, 16);
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ret = vp702x_usb_in_op(adap->dev, 0xe0, (bypass << 8) | 0x0e,
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0, buf, 16);
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mutex_unlock(&st->buf_mutex);
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return ret;
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}
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static int vp702x_set_pld_state(struct dvb_usb_adapter *adap, u8 state)
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{
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int ret;
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struct vp702x_device_state *st = adap->dev->priv;
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u8 *buf;
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mutex_lock(&st->buf_mutex);
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buf = st->buf;
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memset(buf, 0, 16);
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ret = vp702x_usb_in_op(adap->dev, 0xe0, (state << 8) | 0x0f,
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0, buf, 16);
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mutex_unlock(&st->buf_mutex);
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return ret;
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}
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static int vp702x_set_pid(struct dvb_usb_adapter *adap, u16 pid, u8 id, int onoff)
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{
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struct vp702x_adapter_state *st = adap->priv;
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struct vp702x_device_state *dst = adap->dev->priv;
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u8 *buf;
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if (onoff)
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st->pid_filter_state |= (1 << id);
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else {
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st->pid_filter_state &= ~(1 << id);
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pid = 0xffff;
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}
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id = 0x10 + id*2;
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vp702x_set_pld_state(adap, st->pid_filter_state);
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mutex_lock(&dst->buf_mutex);
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buf = dst->buf;
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memset(buf, 0, 16);
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vp702x_usb_in_op(adap->dev, 0xe0, (((pid >> 8) & 0xff) << 8) | (id), 0, buf, 16);
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vp702x_usb_in_op(adap->dev, 0xe0, (((pid ) & 0xff) << 8) | (id+1), 0, buf, 16);
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mutex_unlock(&dst->buf_mutex);
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return 0;
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}
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static int vp702x_init_pid_filter(struct dvb_usb_adapter *adap)
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{
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struct vp702x_adapter_state *st = adap->priv;
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struct vp702x_device_state *dst = adap->dev->priv;
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int i;
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u8 *b;
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st->pid_filter_count = 8;
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st->pid_filter_can_bypass = 1;
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st->pid_filter_state = 0x00;
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vp702x_set_pld_mode(adap, 1); /* bypass */
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for (i = 0; i < st->pid_filter_count; i++)
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vp702x_set_pid(adap, 0xffff, i, 1);
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mutex_lock(&dst->buf_mutex);
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b = dst->buf;
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memset(b, 0, 10);
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vp702x_usb_in_op(adap->dev, 0xb5, 3, 0, b, 10);
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vp702x_usb_in_op(adap->dev, 0xb5, 0, 0, b, 10);
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vp702x_usb_in_op(adap->dev, 0xb5, 1, 0, b, 10);
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mutex_unlock(&dst->buf_mutex);
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/*vp702x_set_pld_mode(d, 0); // filter */
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return 0;
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}
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static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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{
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return 0;
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}
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/* keys for the enclosed remote control */
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static struct rc_map_table rc_map_vp702x_table[] = {
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{ 0x0001, KEY_1 },
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{ 0x0002, KEY_2 },
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};
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/* remote control stuff (does not work with my box) */
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static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
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{
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/* remove the following return to enabled remote querying */
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#if 0
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u8 *key;
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int i;
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key = kmalloc(10, GFP_KERNEL);
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if (!key)
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return -ENOMEM;
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vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);
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deb_rc("remote query key: %x %d\n",key[1],key[1]);
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if (key[1] == 0x44) {
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*state = REMOTE_NO_KEY_PRESSED;
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kfree(key);
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return 0;
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}
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for (i = 0; i < ARRAY_SIZE(rc_map_vp702x_table); i++)
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if (rc5_custom(&rc_map_vp702x_table[i]) == key[1]) {
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*state = REMOTE_KEY_PRESSED;
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*event = rc_map_vp702x_table[i].keycode;
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break;
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}
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kfree(key);
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#endif
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return 0;
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}
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static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
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{
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u8 i, *buf;
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int ret;
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struct vp702x_device_state *st = d->priv;
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mutex_lock(&st->buf_mutex);
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buf = st->buf;
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for (i = 6; i < 12; i++) {
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ret = vp702x_usb_in_op(d, READ_EEPROM_REQ, i, 1,
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&buf[i - 6], 1);
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if (ret < 0)
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goto err;
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}
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memcpy(mac, buf, 6);
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err:
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mutex_unlock(&st->buf_mutex);
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return ret;
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}
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static int vp702x_frontend_attach(struct dvb_usb_adapter *adap)
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{
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u8 buf[10] = { 0 };
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vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 0, 7, NULL, 0);
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if (vp702x_usb_inout_cmd(adap->dev, GET_SYSTEM_STRING, NULL, 0,
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buf, 10, 10))
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return -EIO;
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buf[9] = '\0';
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info("system string: %s",&buf[1]);
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vp702x_init_pid_filter(adap);
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adap->fe_adap[0].fe = vp702x_fe_attach(adap->dev);
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vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 1, 7, NULL, 0);
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return 0;
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}
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static struct dvb_usb_device_properties vp702x_properties;
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static int vp702x_usb_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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struct dvb_usb_device *d;
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struct vp702x_device_state *st;
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int ret;
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ret = dvb_usb_device_init(intf, &vp702x_properties,
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THIS_MODULE, &d, adapter_nr);
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if (ret)
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goto out;
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st = d->priv;
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st->buf_len = 16;
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st->buf = kmalloc(st->buf_len, GFP_KERNEL);
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if (!st->buf) {
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ret = -ENOMEM;
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dvb_usb_device_exit(intf);
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goto out;
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}
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mutex_init(&st->buf_mutex);
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out:
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return ret;
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}
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static void vp702x_usb_disconnect(struct usb_interface *intf)
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{
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struct dvb_usb_device *d = usb_get_intfdata(intf);
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struct vp702x_device_state *st = d->priv;
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mutex_lock(&st->buf_mutex);
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kfree(st->buf);
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mutex_unlock(&st->buf_mutex);
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dvb_usb_device_exit(intf);
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}
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static struct usb_device_id vp702x_usb_table [] = {
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{ USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },
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// { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },
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// { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },
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{ 0 },
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};
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MODULE_DEVICE_TABLE(usb, vp702x_usb_table);
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static struct dvb_usb_device_properties vp702x_properties = {
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.usb_ctrl = CYPRESS_FX2,
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.firmware = "dvb-usb-vp702x-02.fw",
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.no_reconnect = 1,
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.size_of_priv = sizeof(struct vp702x_device_state),
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.num_adapters = 1,
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.adapter = {
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{
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.num_frontends = 1,
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.fe = {{
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.caps = DVB_USB_ADAP_RECEIVES_204_BYTE_TS,
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.streaming_ctrl = vp702x_streaming_ctrl,
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.frontend_attach = vp702x_frontend_attach,
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/* parameter for the MPEG2-data transfer */
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.stream = {
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.type = USB_BULK,
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.count = 10,
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.endpoint = 0x02,
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.u = {
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.bulk = {
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.buffersize = 4096,
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}
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}
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},
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}},
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.size_of_priv = sizeof(struct vp702x_adapter_state),
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}
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},
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.read_mac_address = vp702x_read_mac_addr,
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.rc.legacy = {
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.rc_map_table = rc_map_vp702x_table,
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.rc_map_size = ARRAY_SIZE(rc_map_vp702x_table),
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.rc_interval = 400,
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.rc_query = vp702x_rc_query,
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},
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.num_device_descs = 1,
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.devices = {
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{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",
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.cold_ids = { &vp702x_usb_table[0], NULL },
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.warm_ids = { NULL },
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},
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/* { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",
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.cold_ids = { &vp702x_usb_table[2], NULL },
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.warm_ids = { &vp702x_usb_table[3], NULL },
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},
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*/ { NULL },
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}
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};
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/* usb specific object needed to register this driver with the usb subsystem */
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static struct usb_driver vp702x_usb_driver = {
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.name = "dvb_usb_vp702x",
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.probe = vp702x_usb_probe,
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.disconnect = vp702x_usb_disconnect,
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.id_table = vp702x_usb_table,
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};
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module_usb_driver(vp702x_usb_driver);
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MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
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MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
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MODULE_VERSION("1.0");
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MODULE_LICENSE("GPL");
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