diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb/dibusb-common.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb/dibusb-common.c | 399 |
1 files changed, 399 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/dibusb-common.c b/drivers/media/usb/dvb-usb/dibusb-common.c new file mode 100644 index 0000000000..aff60c10cb --- /dev/null +++ b/drivers/media/usb/dvb-usb/dibusb-common.c @@ -0,0 +1,399 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Common methods for dibusb-based-receivers. + * + * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de) + * + * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information + */ + +#include "dibusb.h" + +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level (1=info (|-able))." DVB_USB_DEBUG_STATUS); +MODULE_LICENSE("GPL"); + +#define deb_info(args...) dprintk(debug,0x01,args) + +/* common stuff used by the different dibusb modules */ +int dibusb_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + if (adap->priv != NULL) { + struct dibusb_state *st = adap->priv; + if (st->ops.fifo_ctrl != NULL) + if (st->ops.fifo_ctrl(adap->fe_adap[0].fe, onoff)) { + err("error while controlling the fifo of the demod."); + return -ENODEV; + } + } + return 0; +} +EXPORT_SYMBOL(dibusb_streaming_ctrl); + +int dibusb_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff) +{ + if (adap->priv != NULL) { + struct dibusb_state *st = adap->priv; + if (st->ops.pid_ctrl != NULL) + st->ops.pid_ctrl(adap->fe_adap[0].fe, + index, pid, onoff); + } + return 0; +} +EXPORT_SYMBOL(dibusb_pid_filter); + +int dibusb_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + if (adap->priv != NULL) { + struct dibusb_state *st = adap->priv; + if (st->ops.pid_parse != NULL) + if (st->ops.pid_parse(adap->fe_adap[0].fe, onoff) < 0) + err("could not handle pid_parser"); + } + return 0; +} +EXPORT_SYMBOL(dibusb_pid_filter_ctrl); + +int dibusb_power_ctrl(struct dvb_usb_device *d, int onoff) +{ + u8 *b; + int ret; + + b = kmalloc(3, GFP_KERNEL); + if (!b) + return -ENOMEM; + + b[0] = DIBUSB_REQ_SET_IOCTL; + b[1] = DIBUSB_IOCTL_CMD_POWER_MODE; + b[2] = onoff ? DIBUSB_IOCTL_POWER_WAKEUP : DIBUSB_IOCTL_POWER_SLEEP; + + ret = dvb_usb_generic_write(d, b, 3); + + kfree(b); + + msleep(10); + + return ret; +} +EXPORT_SYMBOL(dibusb_power_ctrl); + +int dibusb2_0_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + int ret; + u8 *b; + + b = kmalloc(3, GFP_KERNEL); + if (!b) + return -ENOMEM; + + if ((ret = dibusb_streaming_ctrl(adap,onoff)) < 0) + goto ret; + + if (onoff) { + b[0] = DIBUSB_REQ_SET_STREAMING_MODE; + b[1] = 0x00; + ret = dvb_usb_generic_write(adap->dev, b, 2); + if (ret < 0) + goto ret; + } + + b[0] = DIBUSB_REQ_SET_IOCTL; + b[1] = onoff ? DIBUSB_IOCTL_CMD_ENABLE_STREAM : DIBUSB_IOCTL_CMD_DISABLE_STREAM; + ret = dvb_usb_generic_write(adap->dev, b, 3); + +ret: + kfree(b); + return ret; +} +EXPORT_SYMBOL(dibusb2_0_streaming_ctrl); + +int dibusb2_0_power_ctrl(struct dvb_usb_device *d, int onoff) +{ + u8 *b; + int ret; + + if (!onoff) + return 0; + + b = kmalloc(3, GFP_KERNEL); + if (!b) + return -ENOMEM; + + b[0] = DIBUSB_REQ_SET_IOCTL; + b[1] = DIBUSB_IOCTL_CMD_POWER_MODE; + b[2] = DIBUSB_IOCTL_POWER_WAKEUP; + + ret = dvb_usb_generic_write(d, b, 3); + + kfree(b); + + return ret; +} +EXPORT_SYMBOL(dibusb2_0_power_ctrl); + +static int dibusb_i2c_msg(struct dvb_usb_device *d, u8 addr, + u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) +{ + u8 *sndbuf; + int ret, wo, len; + + /* write only ? */ + wo = (rbuf == NULL || rlen == 0); + + len = 2 + wlen + (wo ? 0 : 2); + + sndbuf = kmalloc(MAX_XFER_SIZE, GFP_KERNEL); + if (!sndbuf) + return -ENOMEM; + + if (4 + wlen > MAX_XFER_SIZE) { + warn("i2c wr: len=%d is too big!\n", wlen); + ret = -EOPNOTSUPP; + goto ret; + } + + sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ; + sndbuf[1] = (addr << 1) | (wo ? 0 : 1); + + memcpy(&sndbuf[2], wbuf, wlen); + + if (!wo) { + sndbuf[wlen + 2] = (rlen >> 8) & 0xff; + sndbuf[wlen + 3] = rlen & 0xff; + } + + ret = dvb_usb_generic_rw(d, sndbuf, len, rbuf, rlen, 0); + +ret: + kfree(sndbuf); + return ret; +} + +/* + * I2C master xfer function + */ +static int dibusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int i; + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + for (i = 0; i < num; i++) { + /* write/read request */ + if (i+1 < num && (msg[i].flags & I2C_M_RD) == 0 + && (msg[i+1].flags & I2C_M_RD)) { + if (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len, + msg[i+1].buf,msg[i+1].len) < 0) + break; + i++; + } else if ((msg[i].flags & I2C_M_RD) == 0) { + if (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len,NULL,0) < 0) + break; + } else if (msg[i].addr != 0x50) { + /* 0x50 is the address of the eeprom - we need to protect it + * from dibusb's bad i2c implementation: reads without + * writing the offset before are forbidden */ + if (dibusb_i2c_msg(d, msg[i].addr, NULL, 0, msg[i].buf, msg[i].len) < 0) + break; + } + } + + mutex_unlock(&d->i2c_mutex); + return i; +} + +static u32 dibusb_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +struct i2c_algorithm dibusb_i2c_algo = { + .master_xfer = dibusb_i2c_xfer, + .functionality = dibusb_i2c_func, +}; +EXPORT_SYMBOL(dibusb_i2c_algo); + +int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val) +{ + u8 *buf; + int rc; + + buf = kzalloc(2, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + buf[0] = offs; + + rc = dibusb_i2c_msg(d, 0x50, &buf[0], 1, &buf[1], 1); + *val = buf[1]; + kfree(buf); + + return rc; +} +EXPORT_SYMBOL(dibusb_read_eeprom_byte); + +/* + * common remote control stuff + */ +struct rc_map_table rc_map_dibusb_table[] = { + /* Key codes for the little Artec T1/Twinhan/HAMA/ remote. */ + { 0x0016, KEY_POWER }, + { 0x0010, KEY_MUTE }, + { 0x0003, KEY_1 }, + { 0x0001, KEY_2 }, + { 0x0006, KEY_3 }, + { 0x0009, KEY_4 }, + { 0x001d, KEY_5 }, + { 0x001f, KEY_6 }, + { 0x000d, KEY_7 }, + { 0x0019, KEY_8 }, + { 0x001b, KEY_9 }, + { 0x0015, KEY_0 }, + { 0x0005, KEY_CHANNELUP }, + { 0x0002, KEY_CHANNELDOWN }, + { 0x001e, KEY_VOLUMEUP }, + { 0x000a, KEY_VOLUMEDOWN }, + { 0x0011, KEY_RECORD }, + { 0x0017, KEY_FAVORITES }, /* Heart symbol - Channel list. */ + { 0x0014, KEY_PLAY }, + { 0x001a, KEY_STOP }, + { 0x0040, KEY_REWIND }, + { 0x0012, KEY_FASTFORWARD }, + { 0x000e, KEY_PREVIOUS }, /* Recall - Previous channel. */ + { 0x004c, KEY_PAUSE }, + { 0x004d, KEY_SCREEN }, /* Full screen mode. */ + { 0x0054, KEY_AUDIO }, /* MTS - Switch to secondary audio. */ + /* additional keys TwinHan VisionPlus, the Artec seemingly not have */ + { 0x000c, KEY_CANCEL }, /* Cancel */ + { 0x001c, KEY_EPG }, /* EPG */ + { 0x0000, KEY_TAB }, /* Tab */ + { 0x0048, KEY_INFO }, /* Preview */ + { 0x0004, KEY_LIST }, /* RecordList */ + { 0x000f, KEY_TEXT }, /* Teletext */ + /* Key codes for the KWorld/ADSTech/JetWay remote. */ + { 0x8612, KEY_POWER }, + { 0x860f, KEY_SELECT }, /* source */ + { 0x860c, KEY_UNKNOWN }, /* scan */ + { 0x860b, KEY_EPG }, + { 0x8610, KEY_MUTE }, + { 0x8601, KEY_1 }, + { 0x8602, KEY_2 }, + { 0x8603, KEY_3 }, + { 0x8604, KEY_4 }, + { 0x8605, KEY_5 }, + { 0x8606, KEY_6 }, + { 0x8607, KEY_7 }, + { 0x8608, KEY_8 }, + { 0x8609, KEY_9 }, + { 0x860a, KEY_0 }, + { 0x8618, KEY_ZOOM }, + { 0x861c, KEY_UNKNOWN }, /* preview */ + { 0x8613, KEY_UNKNOWN }, /* snap */ + { 0x8600, KEY_UNDO }, + { 0x861d, KEY_RECORD }, + { 0x860d, KEY_STOP }, + { 0x860e, KEY_PAUSE }, + { 0x8616, KEY_PLAY }, + { 0x8611, KEY_BACK }, + { 0x8619, KEY_FORWARD }, + { 0x8614, KEY_UNKNOWN }, /* pip */ + { 0x8615, KEY_ESC }, + { 0x861a, KEY_UP }, + { 0x861e, KEY_DOWN }, + { 0x861f, KEY_LEFT }, + { 0x861b, KEY_RIGHT }, + + /* Key codes for the DiBcom MOD3000 remote. */ + { 0x8000, KEY_MUTE }, + { 0x8001, KEY_TEXT }, + { 0x8002, KEY_HOME }, + { 0x8003, KEY_POWER }, + + { 0x8004, KEY_RED }, + { 0x8005, KEY_GREEN }, + { 0x8006, KEY_YELLOW }, + { 0x8007, KEY_BLUE }, + + { 0x8008, KEY_DVD }, + { 0x8009, KEY_AUDIO }, + { 0x800a, KEY_IMAGES }, /* Pictures */ + { 0x800b, KEY_VIDEO }, + + { 0x800c, KEY_BACK }, + { 0x800d, KEY_UP }, + { 0x800e, KEY_RADIO }, + { 0x800f, KEY_EPG }, + + { 0x8010, KEY_LEFT }, + { 0x8011, KEY_OK }, + { 0x8012, KEY_RIGHT }, + { 0x8013, KEY_UNKNOWN }, /* SAP */ + + { 0x8014, KEY_TV }, + { 0x8015, KEY_DOWN }, + { 0x8016, KEY_MENU }, /* DVD Menu */ + { 0x8017, KEY_LAST }, + + { 0x8018, KEY_RECORD }, + { 0x8019, KEY_STOP }, + { 0x801a, KEY_PAUSE }, + { 0x801b, KEY_PLAY }, + + { 0x801c, KEY_PREVIOUS }, + { 0x801d, KEY_REWIND }, + { 0x801e, KEY_FASTFORWARD }, + { 0x801f, KEY_NEXT}, + + { 0x8040, KEY_1 }, + { 0x8041, KEY_2 }, + { 0x8042, KEY_3 }, + { 0x8043, KEY_CHANNELUP }, + + { 0x8044, KEY_4 }, + { 0x8045, KEY_5 }, + { 0x8046, KEY_6 }, + { 0x8047, KEY_CHANNELDOWN }, + + { 0x8048, KEY_7 }, + { 0x8049, KEY_8 }, + { 0x804a, KEY_9 }, + { 0x804b, KEY_VOLUMEUP }, + + { 0x804c, KEY_CLEAR }, + { 0x804d, KEY_0 }, + { 0x804e, KEY_ENTER }, + { 0x804f, KEY_VOLUMEDOWN }, +}; +EXPORT_SYMBOL(rc_map_dibusb_table); + +int dibusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state) +{ + u8 *buf; + int ret; + + buf = kmalloc(5, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + buf[0] = DIBUSB_REQ_POLL_REMOTE; + + ret = dvb_usb_generic_rw(d, buf, 1, buf, 5, 0); + if (ret < 0) + goto ret; + + dvb_usb_nec_rc_key_to_event(d, buf, event, state); + + if (buf[0] != 0) + deb_info("key: %*ph\n", 5, buf); + +ret: + kfree(buf); + + return ret; +} +EXPORT_SYMBOL(dibusb_rc_query); |