403 lines
8.9 KiB
C
403 lines
8.9 KiB
C
/* Common methods for dibusb-based-receivers.
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*
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* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, version 2.
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*
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* see Documentation/media/dvb-drivers/dvb-usb.rst for more information
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*/
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#include "dibusb.h"
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/* Max transfer size done by I2C transfer functions */
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#define MAX_XFER_SIZE 64
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level (1=info (|-able))." DVB_USB_DEBUG_STATUS);
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MODULE_LICENSE("GPL");
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#define deb_info(args...) dprintk(debug,0x01,args)
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/* common stuff used by the different dibusb modules */
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int dibusb_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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{
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if (adap->priv != NULL) {
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struct dibusb_state *st = adap->priv;
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if (st->ops.fifo_ctrl != NULL)
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if (st->ops.fifo_ctrl(adap->fe_adap[0].fe, onoff)) {
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err("error while controlling the fifo of the demod.");
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return -ENODEV;
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}
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}
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return 0;
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}
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EXPORT_SYMBOL(dibusb_streaming_ctrl);
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int dibusb_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
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{
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if (adap->priv != NULL) {
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struct dibusb_state *st = adap->priv;
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if (st->ops.pid_ctrl != NULL)
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st->ops.pid_ctrl(adap->fe_adap[0].fe,
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index, pid, onoff);
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}
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return 0;
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}
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EXPORT_SYMBOL(dibusb_pid_filter);
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int dibusb_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
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{
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if (adap->priv != NULL) {
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struct dibusb_state *st = adap->priv;
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if (st->ops.pid_parse != NULL)
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if (st->ops.pid_parse(adap->fe_adap[0].fe, onoff) < 0)
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err("could not handle pid_parser");
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}
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return 0;
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}
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EXPORT_SYMBOL(dibusb_pid_filter_ctrl);
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int dibusb_power_ctrl(struct dvb_usb_device *d, int onoff)
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{
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u8 *b;
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int ret;
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b = kmalloc(3, GFP_KERNEL);
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if (!b)
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return -ENOMEM;
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b[0] = DIBUSB_REQ_SET_IOCTL;
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b[1] = DIBUSB_IOCTL_CMD_POWER_MODE;
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b[2] = onoff ? DIBUSB_IOCTL_POWER_WAKEUP : DIBUSB_IOCTL_POWER_SLEEP;
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ret = dvb_usb_generic_write(d, b, 3);
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kfree(b);
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msleep(10);
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return ret;
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}
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EXPORT_SYMBOL(dibusb_power_ctrl);
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int dibusb2_0_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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{
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int ret;
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u8 *b;
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b = kmalloc(3, GFP_KERNEL);
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if (!b)
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return -ENOMEM;
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if ((ret = dibusb_streaming_ctrl(adap,onoff)) < 0)
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goto ret;
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if (onoff) {
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b[0] = DIBUSB_REQ_SET_STREAMING_MODE;
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b[1] = 0x00;
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ret = dvb_usb_generic_write(adap->dev, b, 2);
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if (ret < 0)
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goto ret;
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}
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b[0] = DIBUSB_REQ_SET_IOCTL;
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b[1] = onoff ? DIBUSB_IOCTL_CMD_ENABLE_STREAM : DIBUSB_IOCTL_CMD_DISABLE_STREAM;
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ret = dvb_usb_generic_write(adap->dev, b, 3);
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ret:
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kfree(b);
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return ret;
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}
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EXPORT_SYMBOL(dibusb2_0_streaming_ctrl);
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int dibusb2_0_power_ctrl(struct dvb_usb_device *d, int onoff)
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{
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u8 *b;
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int ret;
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if (!onoff)
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return 0;
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b = kmalloc(3, GFP_KERNEL);
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if (!b)
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return -ENOMEM;
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b[0] = DIBUSB_REQ_SET_IOCTL;
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b[1] = DIBUSB_IOCTL_CMD_POWER_MODE;
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b[2] = DIBUSB_IOCTL_POWER_WAKEUP;
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ret = dvb_usb_generic_write(d, b, 3);
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kfree(b);
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return ret;
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}
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EXPORT_SYMBOL(dibusb2_0_power_ctrl);
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static int dibusb_i2c_msg(struct dvb_usb_device *d, u8 addr,
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u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
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{
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u8 *sndbuf;
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int ret, wo, len;
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/* write only ? */
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wo = (rbuf == NULL || rlen == 0);
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len = 2 + wlen + (wo ? 0 : 2);
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sndbuf = kmalloc(MAX_XFER_SIZE, GFP_KERNEL);
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if (!sndbuf)
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return -ENOMEM;
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if (4 + wlen > MAX_XFER_SIZE) {
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warn("i2c wr: len=%d is too big!\n", wlen);
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ret = -EOPNOTSUPP;
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goto ret;
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}
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sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ;
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sndbuf[1] = (addr << 1) | (wo ? 0 : 1);
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memcpy(&sndbuf[2], wbuf, wlen);
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if (!wo) {
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sndbuf[wlen + 2] = (rlen >> 8) & 0xff;
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sndbuf[wlen + 3] = rlen & 0xff;
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}
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ret = dvb_usb_generic_rw(d, sndbuf, len, rbuf, rlen, 0);
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ret:
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kfree(sndbuf);
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return ret;
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}
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/*
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* I2C master xfer function
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*/
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static int dibusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
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{
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int i;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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for (i = 0; i < num; i++) {
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/* write/read request */
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if (i+1 < num && (msg[i].flags & I2C_M_RD) == 0
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&& (msg[i+1].flags & I2C_M_RD)) {
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if (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len,
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msg[i+1].buf,msg[i+1].len) < 0)
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break;
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i++;
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} else if ((msg[i].flags & I2C_M_RD) == 0) {
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if (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len,NULL,0) < 0)
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break;
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} else if (msg[i].addr != 0x50) {
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/* 0x50 is the address of the eeprom - we need to protect it
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* from dibusb's bad i2c implementation: reads without
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* writing the offset before are forbidden */
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if (dibusb_i2c_msg(d, msg[i].addr, NULL, 0, msg[i].buf, msg[i].len) < 0)
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break;
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}
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}
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mutex_unlock(&d->i2c_mutex);
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return i;
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}
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static u32 dibusb_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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struct i2c_algorithm dibusb_i2c_algo = {
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.master_xfer = dibusb_i2c_xfer,
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.functionality = dibusb_i2c_func,
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};
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EXPORT_SYMBOL(dibusb_i2c_algo);
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int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val)
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{
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u8 *buf;
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int rc;
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buf = kmalloc(2, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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buf[0] = offs;
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rc = dibusb_i2c_msg(d, 0x50, &buf[0], 1, &buf[1], 1);
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*val = buf[1];
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kfree(buf);
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return rc;
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}
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EXPORT_SYMBOL(dibusb_read_eeprom_byte);
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/*
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* common remote control stuff
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*/
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struct rc_map_table rc_map_dibusb_table[] = {
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/* Key codes for the little Artec T1/Twinhan/HAMA/ remote. */
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{ 0x0016, KEY_POWER },
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{ 0x0010, KEY_MUTE },
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{ 0x0003, KEY_1 },
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{ 0x0001, KEY_2 },
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{ 0x0006, KEY_3 },
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{ 0x0009, KEY_4 },
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{ 0x001d, KEY_5 },
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{ 0x001f, KEY_6 },
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{ 0x000d, KEY_7 },
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{ 0x0019, KEY_8 },
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{ 0x001b, KEY_9 },
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{ 0x0015, KEY_0 },
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{ 0x0005, KEY_CHANNELUP },
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{ 0x0002, KEY_CHANNELDOWN },
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{ 0x001e, KEY_VOLUMEUP },
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{ 0x000a, KEY_VOLUMEDOWN },
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{ 0x0011, KEY_RECORD },
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{ 0x0017, KEY_FAVORITES }, /* Heart symbol - Channel list. */
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{ 0x0014, KEY_PLAY },
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{ 0x001a, KEY_STOP },
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{ 0x0040, KEY_REWIND },
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{ 0x0012, KEY_FASTFORWARD },
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{ 0x000e, KEY_PREVIOUS }, /* Recall - Previous channel. */
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{ 0x004c, KEY_PAUSE },
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{ 0x004d, KEY_SCREEN }, /* Full screen mode. */
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{ 0x0054, KEY_AUDIO }, /* MTS - Switch to secondary audio. */
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/* additional keys TwinHan VisionPlus, the Artec seemingly not have */
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{ 0x000c, KEY_CANCEL }, /* Cancel */
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{ 0x001c, KEY_EPG }, /* EPG */
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{ 0x0000, KEY_TAB }, /* Tab */
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{ 0x0048, KEY_INFO }, /* Preview */
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{ 0x0004, KEY_LIST }, /* RecordList */
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{ 0x000f, KEY_TEXT }, /* Teletext */
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/* Key codes for the KWorld/ADSTech/JetWay remote. */
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{ 0x8612, KEY_POWER },
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{ 0x860f, KEY_SELECT }, /* source */
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{ 0x860c, KEY_UNKNOWN }, /* scan */
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{ 0x860b, KEY_EPG },
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{ 0x8610, KEY_MUTE },
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{ 0x8601, KEY_1 },
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{ 0x8602, KEY_2 },
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{ 0x8603, KEY_3 },
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{ 0x8604, KEY_4 },
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{ 0x8605, KEY_5 },
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{ 0x8606, KEY_6 },
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{ 0x8607, KEY_7 },
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{ 0x8608, KEY_8 },
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{ 0x8609, KEY_9 },
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{ 0x860a, KEY_0 },
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{ 0x8618, KEY_ZOOM },
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{ 0x861c, KEY_UNKNOWN }, /* preview */
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{ 0x8613, KEY_UNKNOWN }, /* snap */
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{ 0x8600, KEY_UNDO },
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{ 0x861d, KEY_RECORD },
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{ 0x860d, KEY_STOP },
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{ 0x860e, KEY_PAUSE },
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{ 0x8616, KEY_PLAY },
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{ 0x8611, KEY_BACK },
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{ 0x8619, KEY_FORWARD },
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{ 0x8614, KEY_UNKNOWN }, /* pip */
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{ 0x8615, KEY_ESC },
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{ 0x861a, KEY_UP },
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{ 0x861e, KEY_DOWN },
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{ 0x861f, KEY_LEFT },
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{ 0x861b, KEY_RIGHT },
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/* Key codes for the DiBcom MOD3000 remote. */
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{ 0x8000, KEY_MUTE },
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{ 0x8001, KEY_TEXT },
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{ 0x8002, KEY_HOME },
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{ 0x8003, KEY_POWER },
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{ 0x8004, KEY_RED },
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{ 0x8005, KEY_GREEN },
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{ 0x8006, KEY_YELLOW },
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{ 0x8007, KEY_BLUE },
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{ 0x8008, KEY_DVD },
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{ 0x8009, KEY_AUDIO },
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{ 0x800a, KEY_IMAGES }, /* Pictures */
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{ 0x800b, KEY_VIDEO },
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{ 0x800c, KEY_BACK },
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{ 0x800d, KEY_UP },
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{ 0x800e, KEY_RADIO },
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{ 0x800f, KEY_EPG },
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{ 0x8010, KEY_LEFT },
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{ 0x8011, KEY_OK },
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{ 0x8012, KEY_RIGHT },
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{ 0x8013, KEY_UNKNOWN }, /* SAP */
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{ 0x8014, KEY_TV },
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{ 0x8015, KEY_DOWN },
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{ 0x8016, KEY_MENU }, /* DVD Menu */
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{ 0x8017, KEY_LAST },
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{ 0x8018, KEY_RECORD },
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{ 0x8019, KEY_STOP },
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{ 0x801a, KEY_PAUSE },
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{ 0x801b, KEY_PLAY },
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{ 0x801c, KEY_PREVIOUS },
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{ 0x801d, KEY_REWIND },
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{ 0x801e, KEY_FASTFORWARD },
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{ 0x801f, KEY_NEXT},
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{ 0x8040, KEY_1 },
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{ 0x8041, KEY_2 },
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{ 0x8042, KEY_3 },
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{ 0x8043, KEY_CHANNELUP },
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{ 0x8044, KEY_4 },
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{ 0x8045, KEY_5 },
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{ 0x8046, KEY_6 },
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{ 0x8047, KEY_CHANNELDOWN },
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{ 0x8048, KEY_7 },
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{ 0x8049, KEY_8 },
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{ 0x804a, KEY_9 },
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{ 0x804b, KEY_VOLUMEUP },
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{ 0x804c, KEY_CLEAR },
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{ 0x804d, KEY_0 },
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{ 0x804e, KEY_ENTER },
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{ 0x804f, KEY_VOLUMEDOWN },
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};
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EXPORT_SYMBOL(rc_map_dibusb_table);
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int dibusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
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{
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u8 *buf;
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int ret;
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buf = kmalloc(5, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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buf[0] = DIBUSB_REQ_POLL_REMOTE;
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ret = dvb_usb_generic_rw(d, buf, 1, buf, 5, 0);
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if (ret < 0)
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goto ret;
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dvb_usb_nec_rc_key_to_event(d, buf, event, state);
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if (buf[0] != 0)
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deb_info("key: %*ph\n", 5, buf);
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ret:
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kfree(buf);
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return ret;
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}
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EXPORT_SYMBOL(dibusb_rc_query);
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