diff options
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dtv5100.c')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dtv5100.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/dtv5100.c b/drivers/media/dvb/dvb-usb/dtv5100.c new file mode 100644 index 0000000..f89d017 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/dtv5100.c @@ -0,0 +1,217 @@ +/* + * DVB USB Linux driver for AME DTV-5100 USB2.0 DVB-T + * + * Copyright (C) 2008 Antoine Jacquet <royale@zerezo.com> + * http://royale.zerezo.com/dtv5100/ + * + * Inspired by gl861.c and au6610.c drivers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "dtv5100.h" +#include "qt1010.h" + +/* debug */ +static int dvb_usb_dtv5100_debug; +module_param_named(debug, dvb_usb_dtv5100_debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +static int dtv5100_read_reg(struct dvb_usb_device *d, u8 addr, u8 reg, u8 *value) +{ + return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), + DTV5100_I2C_READ, USB_TYPE_VENDOR|USB_DIR_IN, + 0, (addr << 8) + reg, value, 1, + DTV5100_USB_TIMEOUT); +} + +static int dtv5100_write_reg(struct dvb_usb_device *d, u8 addr, u8 reg, u8 value) +{ + return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), + DTV5100_I2C_WRITE, USB_TYPE_VENDOR|USB_DIR_OUT, + value, (addr << 8) + reg, NULL, 0, + DTV5100_USB_TIMEOUT); +} + +/* I2C */ +static int dtv5100_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], + int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int i; + + if (num > 2) + return -EINVAL; + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + for (i = 0; i < num; i++) { + if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { + /* write/read request, 2 messages + * msg = { + * { reg }, + * { val }, + * } + */ + if (dtv5100_read_reg(d, msg[i].addr, msg[i].buf[0], msg[i+1].buf) < 0) + break; + i++; + } else { + /* write request, 1 message + * msg = { + * { reg, val }, + * } + */ + if (dtv5100_write_reg(d, msg[i].addr, msg[i].buf[0], msg[i].buf[1]) < 0) + break; + } + } + + mutex_unlock(&d->i2c_mutex); + return i; +} + +static u32 dtv5100_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm dtv5100_i2c_algo = { + .master_xfer = dtv5100_i2c_xfer, + .functionality = dtv5100_i2c_func, +}; + +/* Callbacks for DVB USB */ +static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap) +{ + adap->fe = dtv5100_fe_attach(); + return 0; +} + +static struct qt1010_config dtv5100_qt1010_config = { + .i2c_address = 0xc4 +}; + +static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap) +{ + return dvb_attach(qt1010_attach, + adap->fe, &adap->dev->i2c_adap, + &dtv5100_qt1010_config) == NULL ? -ENODEV : 0; +} + +/* DVB USB Driver stuff */ +static struct dvb_usb_device_properties dtv5100_properties; + +static int dtv5100_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + int i, ret; + struct usb_device *udev = interface_to_usbdev(intf); + + ret = dvb_usb_device_init(intf, &dtv5100_properties, + THIS_MODULE, NULL, adapter_nr); + if (ret) + return ret; + + /* initialize frontend & non qt1010 part? */ + for (i = 0; dtv5100_init[i].request; i++) + { + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + dtv5100_init[i].request, + USB_TYPE_VENDOR|USB_DIR_OUT, + dtv5100_init[i].value, + dtv5100_init[i].index, NULL, 0, + DTV5100_USB_TIMEOUT); + if (ret) + return ret; + } + + return 0; +} + +static struct usb_device_id dtv5100_table [] = { + { USB_DEVICE(0x06be, 0xa232) }, + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, dtv5100_table); + +static struct dvb_usb_device_properties dtv5100_properties = { + .caps = DVB_USB_IS_AN_I2C_ADAPTER, + .usb_ctrl = DEVICE_SPECIFIC, + + .size_of_priv = 0, + + .num_adapters = 1, + .adapter = {{ + .frontend_attach = dtv5100_frontend_attach, + .tuner_attach = dtv5100_tuner_attach, + + .stream = { + .type = USB_BULK, + .count = 8, + .endpoint = 0x82, + .u = { + .bulk = { + .buffersize = 4096, + } + } + }, + } }, + + .i2c_algo = &dtv5100_i2c_algo, + + .num_device_descs = 1, + .devices = { + { + .name = "AME DTV-5100 USB2.0 DVB-T", + .cold_ids = { NULL }, + .warm_ids = { &dtv5100_table[0], NULL }, + }, + } +}; + +static struct usb_driver dtv5100_driver = { + .name = "dvb_usb_dtv5100", + .probe = dtv5100_probe, + .disconnect = dvb_usb_device_exit, + .id_table = dtv5100_table, +}; + +/* module stuff */ +static int __init dtv5100_module_init(void) +{ + int ret; + + ret = usb_register(&dtv5100_driver); + if (ret) + err("usb_register failed. Error number %d", ret); + + return ret; +} + +static void __exit dtv5100_module_exit(void) +{ + /* deregister this driver from the USB subsystem */ + usb_deregister(&dtv5100_driver); +} + +module_init(dtv5100_module_init); +module_exit(dtv5100_module_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); |